Enrollment
2,404
Virginia · 2024-25 NCES data
High school (grades 9-12) · Fairfax, VA
Federal NCES profile for Fairfax High, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 55/100.
The verdict
Fairfax High earns 55/100 on the Resource Investment Index, with class sizes larger than 98% of Virginia schools. It is also one of the largest schools in Virginia.
Fairfax High has class sizes larger than 98% of Virginia schools. Computed live against every Virginia school reporting to NCES.
By Resource Investment Index, Fairfax High ranks #22 of 23 public schools in Fairfax, VA.
NCES ID 510126000463 Verify on NCES CCD record →
Enrollment
2,404
Virginia · 2024-25 NCES data
Teachers (FTE)
128.0
Federal CCD staff survey
Students per teacher
18.8:1
vs 13.9:1 Virginia avg
+35% vs state
Free-lunch eligible
28.0%
vs 57.6% Virginia avg
-51% vs state
How Fairfax High compares with Virginia and U.S. medians
Larger classes than state median
18.8:1 - 4.9 above the Virginia state median of 13.9:1, indicating larger average class loads than typical schools in the state.
Fairfax High is a large high school in Fairfax, Virginia, enrolling 2,404 students.
Class loads run heavy: 18.8:1 is larger than about 98% of Virginia schools and 35% above the 13.9:1 state mean, so each teacher carries more students than is typical.
Economic need runs somewhat below the state's typical profile, with 28.0% of students eligible for free meals.
By headcount it is one of the larger campuses in Virginia, bigger than 99% of state schools at 2,404 students.
Its Resource Investment Index lands in the lower third of 1,868 scored Virginia schools.
Against 71 statewide peers matched on enrollment and economic need, it ranks mid-pack at #44.
Its student body is led by White (34%) and Hispanic or Latino (26%), more mixed than most schools in the state (diversity index 75/100).
On the academic-pipeline side it reports 30 Advanced Placement courses.
Counselor coverage is strong, about 219 students per counselor, inside the American School Counselor Association's recommended 250:1.
15.3% of students were chronically absent in the 2021-22 collection, in line with the post-pandemic national range.
The surrounding Fairfax County Public Schools spends $17,977 per pupil, 23% above the Virginia average, a better-resourced district than most.
Among Fairfax's high schools, it stands alongside Woodson High (2,436 students): Fairfax High is smaller than that campus by headcount and runs heavier classes (18.8:1 vs 15:1).
Fairfax County Public Schools also operates Lake Braddock Secondary (4,411 students) and Robinson Secondary (3,710 students) alongside Fairfax High.
Sourced from NCES CCD, CRDC, and F-33 (federal records, not a quality verdict). How we source and compute this.
Source: National Center for Education Statistics Common Core of Data + CRDC + F-33 · 2024-25
Fairfax High on the metrics families compare, against Virginia and U.S. means.
| Metric | This school | vs Virginia | Virginia avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 18.8:1 | ▲ 35% | 13.9:1 | 15.7:1 |
| Free-lunch eligible | 28.0% | ▼ 51% | 57.6% | 51.7% |
| Enrollment | 2,404 | top 1% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
Three separate federal collections, each on its own reporting cadence - which is why this school's numbers line up on a consistent basis against every other school and state on this site, rather than mixing figures pulled from different survey years.
Largest group: White at 34.1% of enrollment.
Simpson diversity index - at 74.6, Fairfax High is more mixed than the Virginia school average of 53.7.
District-wide per-pupil expenditure for Fairfax County Public Schools, which includes Fairfax High.
Source: NCES F-33 School District Finance Survey District-level finance · FY 2021-22 Per-pupil expenditure reflects the district-wide average. Individual school budgets are not reported at the federal level.
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Lake Braddock Secondary | Larger | Lower economic need | Lower S:T ratio |
| Robinson Secondary | Larger | Lower economic need | Lower S:T ratio |
| Hayfield Secondary | Larger | Similar economic need | Lower S:T ratio |
| Chantilly High | Similar size | Lower economic need | Lower S:T ratio |
| West Springfield High | Similar size | Lower economic need | Similar S:T ratio |
Comparisons are relative to Fairfax High's own figures; each column derives from NCES Common Core of Data.
1 comparable high schools (grades 9-12) serving the same city.
Matched by enrollment size and by staffing ratio across all of Virginia, not just this city - a different peer set than the local comparisons above.
Next steps
Verify locally before acting on Fairfax High's federal record.
Federal record (CCD 2024-25, CRDC 2021-22) - PlainSchools assigns no subjective rating; the composite quality score is a transparent, reproducible index computed from this cited federal data.
Fairfax High has 2,404 students enrolled. It is a high school in Fairfax, VA.
The student-teacher ratio at Fairfax High is 18.8:1, which is 35% higher than the Virginia average of 13.9:1 and 20% higher than the national average of 15.7:1.
28.0% of students at Fairfax High are eligible for free lunch, compared to the Virginia average of 57.6%.
The largest demographic group at Fairfax High is White at 34.1% of enrollment, in Fairfax, VA. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 74.6/100.
Fairfax High has a Resource Investment Index of 55/100 (higher reported resources relative to schools nationally) based on 5 factors: student-teacher ratio, AP course offerings, counselor availability, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
By Resource Investment Index, Fairfax High ranks #22 of 23 public schools in Fairfax, VA. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all public schools in Fairfax on the city page.
Fairfax High earns 55/100 on the Resource Investment Index, with class sizes larger than 98% of Virginia schools. It is also one of the largest schools in Virginia. This is a resource snapshot, not an academic rating; see the Resource Investment Index question above for what the number does and doesn't measure.
Besides Fairfax High, Fairfax County Public Schools also operates Lake Braddock Secondary (4,411 students), Robinson Secondary (3,710 students), and Hayfield Secondary (3,256 students). See the Fairfax County Public Schools district page for the complete list.
Every figure on PlainSchools is rendered directly from the source NCES, CRDC and F-33 federal records, no number is typed in by an editor. Each school's figures reflect its most recent NCES/CRDC submission on file. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of June 2026.
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PlainSchools, “Fairfax High, Fairfax VA.” Compiled from NCES Common Core of Data, Civil Rights Data Collection, and the NCES F-33 finance survey; data as of June 2026. https://plainschools.com/schools/fairfax-high-va
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